---Someone is knocking at the door. Who may it be?---It ______ be Tom. He is still in the school.
Jason likes the _______ of the cake. It is a heart.
_______ age 7, Bruce won second prize in the piano competition.
It is a good habit of ______ to read a few lines before going to bed.
Do you know ______ girl in green? She is our monitor.
— I answer this question in English? —No, you. You may answer it in Chinese.